Filter



FIG. 1 is a perspective view of a filter, showing my new design;

FIG. 2 is a front elevation view thereof, the opposite side being a mirror image thereof;

FIG. 3 is a side elevation view thereof taken from the right of FIG. 2, the opposite side being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a cross sectional view taken along axis 6-6 in FIG. 2, the opposite side being a mirror image thereof;

FIG. 7 is a cross sectional view taken along axis 7-7 in FIG. 3, the opposite side being a mirror image thereof; and,

FIG. 8 is an exploded view of the filter, the opposite side being a mirror image thereof. 

CLAIM I claim, the ornamental design for a filter, as shown and described. 